FR3099400A1 - Body part element comprising a heating film - Google Patents
Body part element comprising a heating film Download PDFInfo
- Publication number
- FR3099400A1 FR3099400A1 FR1908631A FR1908631A FR3099400A1 FR 3099400 A1 FR3099400 A1 FR 3099400A1 FR 1908631 A FR1908631 A FR 1908631A FR 1908631 A FR1908631 A FR 1908631A FR 3099400 A1 FR3099400 A1 FR 3099400A1
- Authority
- FR
- France
- Prior art keywords
- face
- support
- connection member
- heating track
- support element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 53
- 238000000465 moulding Methods 0.000 claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 claims abstract description 21
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 229910001080 W alloy Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920006149 polyester-amide block copolymer Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
- B29C45/14811—Multilayered articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
- H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14819—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being completely encapsulated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14836—Preventing damage of inserts during injection, e.g. collapse of hollow inserts, breakage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3283—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle side-mounted antennas, e.g. bumper-mounted, door-mounted
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
- H01Q1/425—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising a metallic grid
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
- H05B3/286—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material the insulating material being an organic material, e.g. plastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14836—Preventing damage of inserts during injection, e.g. collapse of hollow inserts, breakage
- B29C2045/14844—Layers protecting the insert from injected material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C2045/1486—Details, accessories and auxiliary operations
- B29C2045/14868—Pretreatment of the insert, e.g. etching, cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
- B29K2995/0005—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0026—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/0029—Translucent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3044—Bumpers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/412—Transparent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/013—Heaters using resistive films or coatings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
- H05B2214/02—Heaters specially designed for de-icing or protection against icing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Remote Sensing (AREA)
- Computer Security & Cryptography (AREA)
- Radar, Positioning & Navigation (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
Abstract
L’invention concerne un procédé de fabrication d’un élément (1) pour pièce de carrosserie comprenant successivement les étapes suivantes : - Étape A : on réalise un élément de support (10) présentant une première face (11) sur laquelle est fixée une feuille support (3) comprenant au moins un organe de connexion (4). - Étape B : on dispose une piste chauffante sur l’élément de support (10), substantiellement la totalité de la piste chauffante étant disposée sur la première face (11) de l’élément de support (10), - Étape C : on raccorde la piste chauffante à l’organe de connexion (4), - Étape D : on dispose l’élément de support (10) dans une chambre de moulage d’un moule définissant la forme de l’élément pour pièce de carrosserie, la première face (11) de l’élément de support (10) étant face à l’intérieur de la chambre de moulage et on injecte une matière plastique dans la chambre de moulage afin de recouvrir la piste chauffante. Figure pour l’abrégé : Fig. 1The invention relates to a method of manufacturing an element (1) for a bodywork part comprising successively the following steps: - Step A: a support element (10) having a first face (11) on which is fixed a support sheet (3) comprising at least one connection member (4). - Step B: a heating track is placed on the support element (10), substantially all of the heating track being disposed on the first face (11) of the support element (10), - Step C: on connects the heating track to the connection member (4), - Step D: the support element (10) is placed in a molding chamber of a mold defining the shape of the element for bodywork part, the first face (11) of the support member (10) facing the interior of the molding chamber and a plastic material is injected into the molding chamber in order to cover the heating track. Figure for the abstract: Fig. 1
Description
L’invention concerne le domaine des véhicules automobiles. Et plus particulièrement le domaine de la fabrication d’un élément en matière plastique, destiné à être monté sur une pièce de carrosserie.The invention relates to the field of motor vehicles. And more particularly the field of the manufacture of a plastic element, intended to be mounted on a body part.
De nombreux véhicules modernes sont équipés d’éléments de carrosserie en matière plastique pouvant équiper par exemple un hayon arrière, un flan de portière, des pare-chocs avant et arrière, un toit, etc.Many modern vehicles are fitted with plastic body parts which can be fitted, for example, to a rear hatch, a door panel, front and rear bumpers, a roof, etc.
En particulier, depuis l’introduction des systèmes d’assistance à la conduite, on a besoin de placer sur certaines pièces de carrosserie en plastique des capteurs de différentes sortes, afin de mesurer des paramètres physiques extérieurs représentatifs de l’environnement extérieur du véhicule automobile. L’ensemble des valeurs de ces paramètres forme des informations disponibles en temps réel sur l’environnement du véhicule.In particular, since the introduction of driving assistance systems, it is necessary to place on certain plastic body parts sensors of different kinds, in order to measure external physical parameters representative of the external environment of the motor vehicle. . All the values of these parameters form information available in real time on the environment of the vehicle.
On utilise alors des éléments de carrosserie, rapportés sur la pièce de carrosserie, ayant, par exemple, une fonction de radôme, c’est-à-dire un élément transparent aux ondes électromagnétiques protégeant et cachant des capteurs.Bodywork elements are then used, attached to the bodywork part, having, for example, a radome function, that is to say an element transparent to electromagnetic waves protecting and hiding sensors.
A titre d’exemple, les pare-chocs sont désormais fréquemment équipés de radars de proximité qui permettent d’assister le conducteur lors des phases de manœuvre de stationnement du véhicule automobile à basse vitesse.For example, bumpers are now frequently equipped with proximity radars which help the driver during parking maneuvers of the motor vehicle at low speed.
Certains capteurs, comme celui cité dans l’exemple ci-dessus, peuvent voir leur fonctionnement normal déréglé par la présence d’une couche de glace, de neige ou de givre en cas de température en dessous de 10 degrés Celsius. Cette couche de givre vient perturber le passage normal des ondes électromagnétiques, ce qui est une source d’erreur pour l’évaluation des paramètres physiques extérieurs.Some sensors, such as the one cited in the example above, can see their normal operation disturbed by the presence of a layer of ice, snow or frost in the event of a temperature below 10 degrees Celsius. This layer of frost disrupts the normal passage of electromagnetic waves, which is a source of error for the evaluation of external physical parameters.
Afin d’éviter le dépôt de givre, qui vient non seulement rendre le système d’assistance inutilisable, mais qui de surcroît peut générer de fausses alarmes, il est indispensable de prévoir un système de dégivrage sur l’élément pour pièce de carrosserie, par exemple sur la zone de la pièce de carrosserie qui sert de radôme.In order to avoid the deposit of ice, which not only renders the assistance system unusable, but which in addition can generate false alarms, it is essential to provide a de-icing system on the element for the bodywork part, for example on the area of the body part that serves as a radome.
Un tel système de dégivrage est traditionnellement formé d’une piste chauffante, constituée de fils conducteurs capables de transformer une énergie électrique en énergie thermique est associée à deux plaques de connexion disposées à chaque extrémité de la piste chauffante afin de l’alimenter en un courant électrique. Ce système est positionné sur un élément pour pièce de carrosserie situé à proximité d’un capteur. L’énergie thermique ainsi dégagée permet de dégivrer localement la pièce dans le cas où une couche de givre s’est formée.Such a defrosting system is traditionally formed of a heating track, consisting of conductive wires capable of transforming electrical energy into thermal energy, is associated with two connection plates arranged at each end of the heating track in order to supply it with a current electric. This system is positioned on an element for a bodywork part located near a sensor. The thermal energy thus released makes it possible to locally defrost the room in the event that a layer of frost has formed.
Il est connu, par exemple, du document US2018/0269569, un radôme chauffant comprenant un circuit imprimé (ou PCB de l'anglais « printed circuit board ») flexible formant un film qui est estampé et moulé dans le dos avec un matériau thermoplastique. Le circuit imprimé comprend une structure métallique qui est réalisée au moyen de bandes linéaires. Le radôme comprend en outre un connecteur permettant de raccorder le circuit imprimé à une alimentation électrique. Le radôme tel que décrit dans ce document nécessite un film suffisamment grand pour pouvoir couvrir toute la zone à chauffer qui est équivalent à la surface du radôme. Ainsi, les deux couches de plastique sont séparées l’une de l’autre par le film qui présente un encombrement important ce qui rend le radôme peu robuste et peu étanche. En outre, comme les éléments chauffants sont supportés par le film, ce dernier est présent sur toute la zone à chauffer. Les zones transparentes du radôme sont réduites due à la présence du film. Ainsi, la qualité esthétique du radôme est dégradée.It is known, for example, from document US2018/0269569, a heating radome comprising a flexible printed circuit (or PCB) forming a film which is stamped and molded in the back with a thermoplastic material. The printed circuit comprises a metal structure which is made by means of linear strips. The radome further comprises a connector for connecting the printed circuit to a power supply. The radome as described in this document requires a film large enough to be able to cover the entire area to be heated, which is equivalent to the surface of the radome. Thus, the two layers of plastic are separated from each other by the film which presents a significant bulk which makes the radome not very robust and not very tight. In addition, as the heating elements are supported by the film, the latter is present over the entire area to be heated. The transparent areas of the radome are reduced due to the presence of the film. Thus, the aesthetic quality of the radome is degraded.
L'invention a notamment pour but de fournir un élément destiné à être monté sur une pièce de carrosserie, par exemple un radôme, qui est plus robuste et esthétique.The object of the invention is in particular to provide an element intended to be mounted on a bodywork part, for example a radome, which is more robust and aesthetic.
A cet effet l’invention a pour objet un procédé de fabrication d’un élément pour pièce de carrosserie comprenant successivement les étapes suivantes :
- Étape A : on réalise un élément de support présentant une première face sur laquelle est fixée une feuille support comprenant au moins un organe de connexion.
- Étape B : on dispose une piste chauffante sur l’élément de support, substantiellement la totalité de la piste chauffante étant disposée sur la première face de l’élément de support,
- Étape C : on raccorde la piste chauffante à l’organe de connexion,
- Étape D : on dispose l’élément de support dans une chambre de moulage d’un moule définissant la forme de l’élément pour pièce de carrosserie, la première face de l’élément de support étant face à l’intérieur de la chambre de moulage et on injecte une matière plastique dans la chambre de moulage afin de recouvrir la piste chauffante.To this end, the subject of the invention is a method of manufacturing an element for a bodywork part comprising successively the following steps:
- Step A: a support element is produced having a first face on which is fixed a support sheet comprising at least one connection member.
- Step B: a heating track is placed on the support element, substantially all of the heating track being placed on the first face of the support element,
- Step C: the heating track is connected to the connection device,
- Step D: the support element is placed in a molding chamber of a mold defining the shape of the element for the bodywork part, the first face of the support element facing inside the chamber molding and a plastic material is injected into the molding chamber in order to cover the heating track.
Le procédé tel que proposé par la présente invention permet d’agencer une ou plusieurs pistes chauffantes aux endroits qui nécessitent un apport thermique ce qui augmente l’efficacité de dégivrage. De plus, substantiellement la totalité de l’élément de support est séparé de la couche moulée uniquement par les pistes chauffantes ce qui permet un encombrement réduit entre les couches et une robustesse accrue de la pièce finale. La qualité esthétique de l’élément pour pièce de carrosserie est également améliorée grâce à l’absence de feuille support sur la quasi-totalité de cet élément. En effet, la feuille support comportant l’organe de connexion peut être facilement déportée dans une zone peu visible depuis l’extérieur du véhicule.The method as proposed by the present invention makes it possible to arrange one or more heating tracks at the places which require a heat input, which increases the defrosting efficiency. In addition, substantially all of the support element is separated from the molded layer only by the heating tracks, which allows reduced space between the layers and increased robustness of the final part. The aesthetic quality of the element for body parts is also improved thanks to the absence of a support sheet on almost all of this element. Indeed, the support sheet comprising the connection member can be easily moved to an area that is not very visible from outside the vehicle.
Selon l’invention, la feuille support est une feuille souple, par exemple un circuit imprimé souple, pouvant être soumis à une torsion mécanique et permettant d’offrir un gain de place par rapport à l’utilisation de circuits rigides ou de câblage filaire manuel. L’organe de connexion peut être formé d’une plaque conductrice de l’électricité ou d’une broche métallique et la piste chauffante peut être formée d’un fil conducteur de l’électricité.According to the invention, the support sheet is a flexible sheet, for example a flexible printed circuit, which can be subjected to mechanical torsion and makes it possible to save space compared to the use of rigid circuits or manual wired wiring. . The connection member may be formed of an electrically conductive plate or of a metal pin and the heating track may be formed of an electrically conductive wire.
Suivant d’autres caractéristiques optionnelles du procédé de fabrication prises seules ou en combinaison :
- l’élément de support est un film en matière plastique et l’étape A comprend les étapes suivantes :
- on réalise un film en matière plastique,
- on fixe sur une première face du film une feuille support comprenant au moins un organe de connexion.According to other optional characteristics of the manufacturing process taken alone or in combination:
- the support element is a plastic film and step A comprises the following steps:
- a plastic film is produced,
- Is fixed on a first face of the film a support sheet comprising at least one connection member.
La fixation de la feuille support sur le film permet de garantir la tenue de la feuille support pendant l’étape de surmoulage du film. Cette fixation peut être fait par collage, soudage ou encore l’utilisation de bande adhésive. Le film 10 est réalisé par extrusion ou laminage mais il est également envisageable d’utiliser un film existant sur le marché.
- le procédé de fabrication comprend l’étape suivante : on dépose un revêtement sur une seconde face du film, opposée à la première face. Le revêtement permet d’améliorer la résistance du film aux UV ou à la rayure. Le revêtement peut être un vernis ou un revêtement issu d’un traitement hardcoat.
- l’élément de support est une pièce moulée et l’étape A comprend les étapes suivantes :
- on dispose une feuille support comprenant au moins un organe de connexion dans une chambre de moulage d’un moule définissant la forme de l’élément de support, une première face de la feuille support étant face à l’intérieur de la chambre de moulage, et on injecte une matière plastique dans la chambre de moulage afin d’obtenir une pièce moulée couvrant la première face de la feuille support,
- on dispose sur une seconde face de la feuille support, opposée à la première face, au moins un organe de de connexion.
- le procédé de fabrication comprend l’étape suivante avant l’étape D : on dispose sur la feuille support un moyen de protection de l’organe de connexion de façon à protéger au moins partiellement l’organe de connexion de la matière plastique pendant l’étape D. Le moyen de protection présente un espace contenant au moins partiellement l’organe de connexion de façon à ce que celui-ci soit isolé de la matière plastique injectée pendant le moulage tout en lui gardant un accès pour le branchement à une alimentation électrique.
- la piste chauffante est raccordée à l’organe de connexion par soudure. Le type de soudure peut être de différente nature, par exemple TC bonding ou encore la soudure électrique.
- la feuille support comprend une pluralité d’organe de connexion reliés électriquement entre eux par des moyens de connexion intégrés dans la feuille support et les étapes B et C consistent à disposer un nombre correspondant de piste chauffante sur l’élément de support et à raccorder chaque piste chauffante à un organe de connexion. Il est alors possible d’agencer des pistes chauffantes de manière indépendante ce qui facilite la répartition des zones chauffantes en fonction du besoin et améliore l’aspect esthétique du radôme.
- on fixe la piste chauffante sur l’élément de support par collage ou par fusion locale de l’élément de support. Cette fixation peut également être réalisée par soudure à l’étain.
- la piste chauffante comprend un matériau choisi parmi du cuivre, du tungstène, ou un alliage de cuivre et de tungstène.
- la feuille de support est réalisée à partir d’une feuille de silicone, de polyoléfine (polyéthylène ou polypropylène), d’élastomère thermoplastique (TPE), de polyester, ou de polyamide. La feuille de support peut également être en époxy. La matière qui est surmoulée sur la feuille de support est choisie de façon à ce qu’elle soit compatible chimiquement avec le film pour assurer une bonne liaison et garantir un minimum défaut d’interface.The fixing of the support sheet on the film makes it possible to guarantee the holding of the support sheet during the overmolding step of the film. This fixing can be done by gluing, welding or even the use of adhesive tape. The film 10 is produced by extrusion or lamination, but it is also possible to use an existing film on the market.
- the manufacturing process comprises the following step: a coating is deposited on a second face of the film, opposite the first face. The coating makes it possible to improve the resistance of the film to UV or to scratching. The coating can be a varnish or a coating resulting from a hardcoat treatment.
- the support element is a molded part and step A includes the following steps:
- a support sheet comprising at least one connection member is placed in a molding chamber of a mold defining the shape of the support element, a first face of the support sheet facing inside the molding chamber , and a plastic material is injected into the molding chamber in order to obtain a molded part covering the first face of the support sheet,
- Is placed on a second face of the support sheet, opposite to the first face, at least one connection member.
- the manufacturing process comprises the following step before step D: a means for protecting the connection member is placed on the support sheet so as to at least partially protect the connection member from the plastic material during the step D. The protection means has a space at least partially containing the connection member so that the latter is isolated from the plastic material injected during molding while retaining access to it for connection to a power supply electric.
- The heating track is connected to the connection member by welding. The type of welding can be of different nature, for example TC bonding or electric welding.
- the support sheet comprises a plurality of connection members electrically connected to each other by connection means integrated into the support sheet and steps B and C consist in arranging a corresponding number of heating tracks on the support element and in connecting each heating track to a connection member. It is then possible to arrange heating tracks independently, which facilitates the distribution of the heating zones according to need and improves the aesthetic appearance of the radome.
- The heating track is fixed on the support element by gluing or by local melting of the support element. This attachment can also be made by soldering with tin.
- the heating track comprises a material chosen from copper, tungsten, or an alloy of copper and tungsten.
- the support sheet is made from a sheet of silicone, polyolefin (polyethylene or polypropylene), thermoplastic elastomer (TPE), polyester, or polyamide. The backing sheet can also be epoxy. The material which is overmolded on the support sheet is chosen so that it is chemically compatible with the film to ensure good bonding and guarantee a minimum interface defect.
L’invention a également pour objet un élément pour pièce de carrosserie comprenant une première couche en plastique transparente, une seconde couche en plastique transparente, une piste chauffante agencée entre les couches en plastique transparente et reliée à un organe de connexion, substantiellement la totalité de la piste chauffante étant en contact direct avec les première et seconde couches.The invention also relates to an element for a bodywork part comprising a first transparent plastic layer, a second transparent plastic layer, a heating track arranged between the transparent plastic layers and connected to a connection member, substantially all of the heating track being in direct contact with the first and second layers.
Brève description des figuresBrief description of figures
L'invention sera mieux comprise à la lecture de la description qui va suivre donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés dans lesquels :The invention will be better understood on reading the following description given solely by way of example and made with reference to the appended drawings in which:
Description détailléedetailed description
On a représenté sur les figures 1 et 2 un élément pour pièce de carrosserie désigné par la référence générale 1 qui est en cours de fabrication selon le procédé tel que proposé par la présente invention. Le procédé de fabrication comprend une première étape à laquelle on réalise un élément de support 10, 20 présentant une première face 11, 21 sur laquelle est fixé une feuille support 3 comprenant au moins un organe de connexion 4. L’organe de connexion 4 est formé d’une plaque conductrice de l’électricité.There is shown in Figures 1 and 2 an element for a body part designated by the general reference 1 which is being manufactured according to the method as proposed by the present invention. The manufacturing method comprises a first step in which a support element 10, 20 is produced having a first face 11, 21 on which is fixed a support sheet 3 comprising at least one connection member 4. The connection member 4 is made of an electrically conductive plate.
Deux modes de réalisation sont illustrés respectivement aux figures 3 et 4 et seront décrits en détail plus loin. Dans les deux modes de réalisation, on dispose une piste chauffante 5 sur l’élément de support 10, 20, substantiellement la totalité de la piste chauffante 5 étant disposée sur la première face 11, 21 de l’élément de support 10, 20, la piste chauffante étant formée d’un fil conducteur de l’électricité. Ensuite, on raccorde la piste chauffante 5 à l’organe de connexion 4 et on dispose l’élément de support 10, 20 dans une chambre de moulage d’un moule définissant la forme de l’élément pour pièce de carrosserie, la première face 11, 21 de l’élément de support 10, 20 étant face à l’intérieur de la chambre de moulage et on injecte une matière plastique dans la chambre de moulage afin de recouvrir la piste chauffante 5.Two embodiments are illustrated respectively in Figures 3 and 4 and will be described in detail later. In both embodiments, a heating track 5 is placed on the support element 10, 20, substantially all of the heating track 5 being placed on the first face 11, 21 of the support element 10, 20, the heating track being formed of an electrically conductive wire. Next, the heating track 5 is connected to the connection member 4 and the support element 10, 20 is placed in a molding chamber of a mold defining the shape of the element for the bodywork part, the first face 11, 21 of the support element 10, 20 facing the inside of the molding chamber and a plastic material is injected into the molding chamber in order to cover the heating track 5.
Maintenant, on va décrire le premier mode de réalisation qui est visible aux figures 3a-3e. Selon ce mode de réalisation, l’élément de support est un film 10 en matière plastique comme illustré à la figure 3a. On réalise ce film 10 par extrusion ou laminage avant de fixer une feuille support 3 comprenant au moins un organe de connexion 4 sur une première face 11 du film 10 comme illustré à la figure 3b. Il est également envisageable d’utiliser un film existant sur le marché. Le film 10 forme une première couche 10 transparente.Now, we will describe the first embodiment which is visible in Figures 3a-3e. According to this embodiment, the support element is a film 10 of plastic material as illustrated in FIG. 3a. This film 10 is produced by extrusion or lamination before fixing a support sheet 3 comprising at least one connection member 4 on a first face 11 of the film 10 as illustrated in FIG. 3b. It is also possible to use an existing film on the market. The film 10 forms a first layer 10 transparent.
Tel que visible à la figure 3c, on dispose une piste chauffante 5 sur le film 10, substantiellement la totalité de la piste chauffante 5 étant disposée sur la première face 11 de l’élément de support. Ensuite, on raccorde la piste chauffante 5 à l’organe de connexion 4 par soudure par exemple. Les pistes chauffantes 5 sont réparties de façon homogène sur toute la surface du film 10 et y sont fixées par collage ou par fusion locale du film 10.As visible in FIG. 3c, a heating track 5 is placed on the film 10, substantially all of the heating track 5 being placed on the first face 11 of the support element. Then, the heating track 5 is connected to the connection member 4 by welding for example. The heating tracks 5 are distributed evenly over the entire surface of the film 10 and are fixed there by gluing or by local melting of the film 10.
Une étape de moulage est ensuite réalisée dans laquelle on dispose l’élément de support 10 dans une chambre de moulage d’un moule définissant la forme de l’élément pour pièce de carrosserie, la première face 11 de l’élément de support 10 étant face à l’intérieur de la chambre de moulage et on injecte une matière plastique dans la chambre de moulage afin de recouvrir la piste chauffante 5. On obtient ainsi une seconde couche transparente 13 tel qu’illustré par la figure 3d. La chambre de moulage de l’élément pour pièce de carrosserie est configurée de façon à ce qu’après le moulage, l’organe de connexion 4 soit accessible par un moyen d’alimentation électrique. Ainsi, l’épaisseur de la seconde couche 13 transparente est inférieure à celle de l’organe de connexion 4.A molding step is then carried out in which the support element 10 is placed in a molding chamber of a mold defining the shape of the element for the bodywork part, the first face 11 of the support element 10 being face inside the molding chamber and a plastic material is injected into the molding chamber in order to cover the heating track 5. A second transparent layer 13 is thus obtained as illustrated by FIG. 3d. The molding chamber of the element for a bodywork part is configured so that after molding, the connection member 4 is accessible by a power supply means. Thus, the thickness of the second transparent layer 13 is less than that of the connection member 4.
Afin d’améliorer la résistance de l’élément aux UV et de le protéger de la rayure, il est possible de déposer un revêtement 6 sur une seconde face 12 du film qui est opposée à la première face 11 comme montré à la figure 3e. Cette étape est également envisageable dans le second mode de réalisation qui est illustré aux figures 4 et 5.In order to improve the resistance of the element to UV and to protect it from scratching, it is possible to deposit a coating 6 on a second face 12 of the film which is opposite to the first face 11 as shown in FIG. 3e. This step is also possible in the second embodiment which is illustrated in Figures 4 and 5.
Selon le second mode de réalisation de la présente invention, l’élément de support est une pièce moulée 20 formant une première couche 20 transparente qui est obtenu par les étapes suivantes : on dispose une feuille support 3 comprenant au moins un organe de connexion 4 dans une chambre de moulage d’une moule définissant la forme de la pièce moulée 20 comme visible à la figure 4a. Une première face 31 de la feuille support 3 est placée face à l’intérieur de la chambre de moulage. A la fermeture du moule, une matière plastique par exemple du TP est injectée dans la chambre de moulage 3 tel que visible à la figure 4b et on obtient la pièce moulée 20 couvrant la première face 31 de la feuille support 3 comme montré à la figure 4c. La chambre de moulage de la pièce moulée 20 est configurée de façon à ce que l’épaisseur de la pièce moulée 20 soit inférieure à celle de l’organe de connexion 4 pour que ce dernier soit accessible par un moyen d’alimentation électrique.According to the second embodiment of the present invention, the support element is a molded part 20 forming a first transparent layer 20 which is obtained by the following steps: a support sheet 3 comprising at least one connection member 4 is placed in a molding chamber of a mold defining the shape of the molded part 20 as seen in Figure 4a. A first face 31 of the support sheet 3 is placed face inside the molding chamber. When the mold is closed, a plastic material, for example TP, is injected into the molding chamber 3 as shown in FIG. 4b and the molded part 20 is obtained covering the first face 31 of the support sheet 3 as shown in FIG. 4c. The molding chamber of the molded part 20 is configured so that the thickness of the molded part 20 is less than that of the connection member 4 so that the latter is accessible by an electrical supply means.
Par la suite, tel que visible à la figure 4d, on dispose plusieurs organes de connexion 4’ sur une seconde face 32 de la feuille support 3 qui est opposée à la première face 31, les organes de connexion 4’ étant reliés électriquement entre eux par des moyens de connexion intégrés dans la feuille support 3. Tous les organes de connexion 4’ sont également reliés à l’organe de connexion 4 qui se trouve sur la première face 31.Subsequently, as seen in Figure 4d, there are several connection members 4 'on a second face 32 of the support sheet 3 which is opposite the first face 31, the connection members 4' being electrically connected to each other by connection means integrated into the support sheet 3. All the connection members 4' are also connected to the connection member 4 which is located on the first face 31.
Après le surmoulage de la première couche 20 transparente 20 et comme visible à la figure 4e, des pistes chauffantes 5 sont disposées sur la première couche 20 et raccordées chacune à un organe de connexion 4’ sur la seconde face 32 de la feuille support 3 par soudure. Les pistes chauffantes 5 sont réparties de façon homogène sur toute la surface de la première couche 20 transparente et y sont fixées par collage ou par fusion locale de la première couche 20.After the overmolding of the first transparent layer 20 and as visible in FIG. 4e, heating tracks 5 are arranged on the first layer 20 and each connected to a connection member 4′ on the second face 32 of the support sheet 3 by welding. The heating tracks 5 are distributed homogeneously over the entire surface of the first transparent layer 20 and are fixed thereto by gluing or by local melting of the first layer 20.
Enfin, l’ensemble comprenant la première couche 20, la feuille support 3 et les piste chauffantes 5 est placé dans une chambre de moulage définissant la forme de l’élément pour pièce de carrosserie, la première face 21 de la première couche 20 étant face à l’intérieur de la chambre de moulage. Une autre matière plastique, par exemple du polyuréthane thermoplastique (TPU), est injectée dans la chambre de moulage afin de recouvrir les pistes chauffante 5 comme illustré à la figure 4f.Finally, the assembly comprising the first layer 20, the support sheet 3 and the heating tracks 5 is placed in a molding chamber defining the shape of the element for a bodywork part, the first face 21 of the first layer 20 being facing inside the molding chamber. Another plastic material, for example thermoplastic polyurethane (TPU), is injected into the molding chamber in order to cover the heating tracks 5 as illustrated in FIG. 4f.
Selon le premier ou le second mode de réalisation, on obtient un élément 1 pour pièce de carrosserie comprenant une première couche 10, 20 en plastique transparente, une seconde couche 13, 23 en plastique transparente, une piste chauffante 5 agencée entre les couches 10, 13 ; 20, 23 en plastique transparente et reliée à un organe de connexion 4, substantiellement la totalité de la piste chauffante 5 étant en contact direct avec les première et seconde couches 10, 13 ; 20, 23.According to the first or the second embodiment, an element 1 for a bodywork part is obtained comprising a first layer 10, 20 of transparent plastic, a second layer 13, 23 of transparent plastic, a heating track 5 arranged between the layers 10, 13; 20, 23 made of transparent plastic and connected to a connection member 4, substantially all of the heating track 5 being in direct contact with the first and second layers 10, 13; 20, 23.
Un tel élément 1 obtenu par le procédé de fabrication selon le second mode de réalisation est visible à la figure 5 qui illustre un autre aspect de l’invention concernant un moyen de protection 7 de l’organe de connexion. Le moyen de protection 7 tel qu’il est illustré également aux figures 1 et 2 comprend une base 71 destinée à prendre appui contre la feuille support 3 et une paroi 72 s’étendant depuis la base 71 et définissant un espace destiné à contenir au moins partiellement l’organe de connexion 4 de façon à ce que celui-ci soit isolé de la matière plastique injectée pendant le moulage tout en lui gardant un accès pour le branchement à une alimentation électrique.Such an element 1 obtained by the manufacturing method according to the second embodiment can be seen in FIG. 5 which illustrates another aspect of the invention relating to a means of protection 7 of the connection member. The protection means 7 as also illustrated in FIGS. 1 and 2 comprises a base 71 intended to bear against the support sheet 3 and a wall 72 extending from the base 71 and defining a space intended to contain at least partially the connection member 4 so that it is isolated from the plastic material injected during molding while retaining access to it for connection to a power supply.
L'invention n'est pas limitée aux modes de réalisation présentés et d'autres modes de réalisation apparaîtront clairement à l'homme du métier. Il est notamment possible d’agencer plusieurs organes de connexion dans le premier mode de réalisation et de les relier électriquement ensemble. Il est également possible de prévoir un anneau ou une zone technique opaque permettant de cacher la feuille supporte lorsque l’élément est assemblée sur le véhicule.The invention is not limited to the embodiments shown and other embodiments will be apparent to those skilled in the art. It is in particular possible to arrange several connection members in the first embodiment and to connect them electrically together. It is also possible to provide a ring or an opaque technical area to hide the support sheet when the element is assembled on the vehicle.
Liste de référencesList of references
1 : élément 10, 20 : élément de support (première couche)
13, 23 : seconde couche
10 : film
20 : pièce moulée
11, 21 : première face de l’élément de support
3 : feuille de support
31 : première face de la feuille support
32 : seconde face de la feuille support
4, 4’ : organe de connexion
5 : piste chauffante
7 : moyen de protection
71 : base
72 : paroi1: element 10, 20: support element (first layer)
13, 23: second layer
10: movie
20: casting
11, 21: first face of the support element
3: backing sheet
31: first face of the support sheet
32: second face of the support sheet
4, 4': connecting device
5: heating track
7: means of protection
71: base
72: wall
Claims (11)
- Étape A : on réalise unélément de support (10, 20)présentant une première face (11, 21) sur laquelle est fixée une feuille support (3) comprenant au moins un organe de connexion (4).
- Étape B : on dispose une piste chauffante (5) sur l’élément de support (10, 20),substantiellement la totalité de la piste chauffante (5) étant disposée sur la première face (11, 21) de l’élément de support (10, 20) ,
- Étape C : on raccorde la piste chauffante (5) à l’organe de connexion (4),
- Étape D : on dispose l’élément de support (10, 20) dans une chambre de moulage d’un moule définissant la forme de l’élément pour pièce de carrosserie, la première face (11, 21) de l’élément de support (10, 20) étant face à l’intérieur de la chambre de moulage et on injecte une matière plastique dans la chambre de moulage afin de recouvrir la piste chauffante (5).Method for manufacturing an element (1) for a bodywork part comprising successively the following steps:
- Step A: a support element (10, 20) is produced having a first face (11, 21) on which is fixed a support sheet (3) comprising at least one connection member (4).
- Step B: a heating track (5) is placed on the support element (10, 20), substantially all of the heating track (5) being placed on the first face (11, 21) of the support (10, 20) ,
- Step C: the heating track (5) is connected to the connection member (4),
- Step D: the support element (10, 20) is placed in a molding chamber of a mold defining the shape of the element for the bodywork part, the first face (11, 21) of the support (10, 20) facing the inside of the molding chamber and a plastic material is injected into the molding chamber in order to cover the heating track (5).
- on réalise un film (10) en matière plastique,
- on fixe sur une première face (11) du film (10) une feuille support (3) comprenant au moins un organe de connexion (4).Manufacturing process according to Claim 1, in which the support element (10) is a film (10) of plastic material and step A comprises the following steps:
- a film (10) of plastic material is produced,
- Is fixed on a first face (11) of the film (10) a support sheet (3) comprising at least one connection member (4).
- on dépose un revêtement (6) sur une seconde face (12) du film, opposée à la première face (11).Manufacturing process according to any one of the preceding claims, comprising the following step:
- A coating (6) is deposited on a second face (12) of the film, opposite the first face (11).
- on dispose une feuille support (3) comprenant au moins un organe de connexion (4) dans une chambre de moulage d’un moule définissant la forme de l’élément de support (20), une première face (31) de la feuille support (3) étant face à l’intérieur de la chambre de moulage, et on injecte une matière plastique dans la chambre de moulage afin d’obtenir une pièce moulée couvrant la première face (31) de la feuille support (3),
- On dispose sur une seconde face (32) de la feuille support (3), opposée à la première face (31), au moins un organe de de connexion (4).Manufacturing method according to claim 1, in which the support element (20) is a molded part (20) and step A comprises the following steps:
- a support sheet (3) comprising at least one connection member (4) is placed in a molding chamber of a mold defining the shape of the support element (20), a first face (31) of the sheet support (3) facing inside the molding chamber, and a plastic material is injected into the molding chamber in order to obtain a molded part covering the first face (31) of the support sheet (3),
- Is placed on a second face (32) of the support sheet (3), opposite the first face (31), at least one connection member (4).
- On dispose sur la feuille support un moyen de protection (7) de l’organe de connexion (4) de façon à protéger au moins partiellement l’organe de connexion (4) de la matière plastique pendant l’étape D.Manufacturing process according to any one of the preceding claims, comprising the following step before step D:
- A means (7) for protecting the connection member (4) is placed on the support sheet so as to at least partially protect the connection member (4) from the plastic material during step D.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1908631A FR3099400B1 (en) | 2019-07-29 | 2019-07-29 | Body part element comprising a heating film |
EP20188057.2A EP3782790B1 (en) | 2019-07-29 | 2020-07-28 | Process for a vehicle body part comprising a heating film |
CN202010742741.2A CN112310634A (en) | 2019-07-29 | 2020-07-29 | Vehicle body component comprising a heating film |
US16/941,795 US11877357B2 (en) | 2019-07-29 | 2020-07-29 | Body part element comprising a heating film |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1908631A FR3099400B1 (en) | 2019-07-29 | 2019-07-29 | Body part element comprising a heating film |
FR1908631 | 2019-07-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3099400A1 true FR3099400A1 (en) | 2021-02-05 |
FR3099400B1 FR3099400B1 (en) | 2021-07-30 |
Family
ID=68654698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1908631A Expired - Fee Related FR3099400B1 (en) | 2019-07-29 | 2019-07-29 | Body part element comprising a heating film |
Country Status (4)
Country | Link |
---|---|
US (1) | US11877357B2 (en) |
EP (1) | EP3782790B1 (en) |
CN (1) | CN112310634A (en) |
FR (1) | FR3099400B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4090131A1 (en) * | 2021-05-13 | 2022-11-16 | Yanfeng Plastic Omnium Automotive Exterior Systems Co., Ltd. | A defrosting heating module for an automobile |
EP4122670A1 (en) * | 2021-07-23 | 2023-01-25 | Weißer und Grießhaber Gesellschaft mit beschränkter Haftung | Method for producing a plastic cover with an electrical conductor path |
AT526302A1 (en) * | 2022-06-21 | 2024-01-15 | Att Advanced Thermal Tech Gmbh | Protective cover for vehicle technology sensors |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180269569A1 (en) | 2015-09-30 | 2018-09-20 | HELLA GmbH & Co. KGaA | Method for producing a radome and corresponding radome |
DE102018007404A1 (en) * | 2017-09-25 | 2019-03-28 | Compagnie Plastic Omnium | Method for producing a vehicle component made of plastic with at least one injection-molded heating track |
FR3075720A1 (en) * | 2017-12-21 | 2019-06-28 | Compagnie Plastic Omnium | BODY COMPONENT COMPRISING A DECORATION ELEMENT AND A HEATING MEANS |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013012785A1 (en) * | 2013-07-31 | 2015-02-05 | Daimler Ag | Manufacturing method for a plastic radome of a motor vehicle |
JP6540611B2 (en) * | 2016-06-15 | 2019-07-10 | 株式会社豊田自動織機 | Resin window manufacturing method and resin window |
DE102018132395A1 (en) * | 2018-12-17 | 2020-06-18 | Bayerische Motoren Werke Aktiengesellschaft | Method for producing a surface heating for a partial area of a vehicle |
-
2019
- 2019-07-29 FR FR1908631A patent/FR3099400B1/en not_active Expired - Fee Related
-
2020
- 2020-07-28 EP EP20188057.2A patent/EP3782790B1/en active Active
- 2020-07-29 US US16/941,795 patent/US11877357B2/en active Active
- 2020-07-29 CN CN202010742741.2A patent/CN112310634A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180269569A1 (en) | 2015-09-30 | 2018-09-20 | HELLA GmbH & Co. KGaA | Method for producing a radome and corresponding radome |
DE102018007404A1 (en) * | 2017-09-25 | 2019-03-28 | Compagnie Plastic Omnium | Method for producing a vehicle component made of plastic with at least one injection-molded heating track |
FR3075720A1 (en) * | 2017-12-21 | 2019-06-28 | Compagnie Plastic Omnium | BODY COMPONENT COMPRISING A DECORATION ELEMENT AND A HEATING MEANS |
Also Published As
Publication number | Publication date |
---|---|
EP3782790A1 (en) | 2021-02-24 |
CN112310634A (en) | 2021-02-02 |
FR3099400B1 (en) | 2021-07-30 |
EP3782790B1 (en) | 2022-09-07 |
US20210037610A1 (en) | 2021-02-04 |
US11877357B2 (en) | 2024-01-16 |
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